1 files changed, 46 insertions, 0 deletions
diff --git a/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptRsaPssNull.c b/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptRsaPssNull.c
new file mode 100644
index 0000000000..75ad71a922
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLibMbedTls/Pk/CryptRsaPssNull.c
@@ -0,0 +1,46 @@
+/** @file
+  RSA-PSS Asymmetric Cipher Wrapper Implementation over MbedTLS.
+
+  This file does not provide real capabilities for following APIs in RSA handling:
+  1) RsaPssVerify
+
+Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "InternalCryptLib.h"
+
+/**
+  Verifies the RSA signature with RSASSA-PSS signature scheme defined in RFC 8017.
+  Implementation determines salt length automatically from the signature encoding.
+  Mask generation function is the same as the message digest algorithm.
+  Salt length should be equal to digest length.
+
+  @param[in]  RsaContext      Pointer to RSA context for signature verification.
+  @param[in]  Message         Pointer to octet message to be verified.
+  @param[in]  MsgSize         Size of the message in bytes.
+  @param[in]  Signature       Pointer to RSASSA-PSS signature to be verified.
+  @param[in]  SigSize         Size of signature in bytes.
+  @param[in]  DigestLen       Length of digest for RSA operation.
+  @param[in]  SaltLen         Salt length for PSS encoding.
+
+  @retval  TRUE   Valid signature encoded in RSASSA-PSS.
+  @retval  FALSE  Invalid signature or invalid RSA context.
+
+**/
+BOOLEAN
+EFIAPI
+RsaPssVerify (
+  IN  VOID         *RsaContext,
+  IN  CONST UINT8  *Message,
+  IN  UINTN        MsgSize,
+  IN  CONST UINT8  *Signature,
+  IN  UINTN        SigSize,
+  IN  UINT16       DigestLen,
+  IN  UINT16       SaltLen
+  )
+{
+  ASSERT (FALSE);
+  return FALSE;
+}